Multiple chamfers bending edge

Multiple chamfers bending edge

jan.gladines
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Message 1 of 23

Multiple chamfers bending edge

jan.gladines
Contributor
Contributor

Say I create a box, fillet the corners and apply a chamfer to the top I get this

 

Screen Shot 2017-08-21 at 01.28.04.png

with a nice and smooth chamfer across the edge. However, I want the chamfer of the vertical lines to be angled differently and have a different distance. When I do this however, this is the result.

Screen Shot 2017-08-21 at 01.38.37.png

Does anyone have any idea how to fix this? I want my result to look like this edge

m0110_260.jpg

I really hope someone can help me out here 😕 Have a nice day!!

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Message 2 of 23

davebYYPCU
Consultant
Consultant

For the keyboard style, 

create in two stages, box with fillet for the lower section, use offset plane and a new sketch for the top surface,

 

then Loft > Join, the higher section, 

 

Might help....

Message 3 of 23

TrippyLighting
Consultant
Consultant

If whatI show in the screenshot would be acceptable, you can also simply change the fillet type from constant to chord.

 

Screen Shot 2017-08-20 at 10.05.40 PM.png

 

 


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Message 4 of 23

patilsm
Autodesk
Autodesk

Hi,

 

As suggested by @davebYYPCU, you can use Loft for key board creation.

 

I tried and its gets display as shown below

2.f3d.png




Sagar Patil
Software Engineer
Quality Assurance
Autodesk, Inc.


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Message 5 of 23

SaeedHamza
Advisor
Advisor

@TrippyLighting Actually 2 fillets are better, Constant radius and Variable radius

 

Here is a screenshot of the result :

2 fillets.png

 

Regards

 

Saeed

Saeed Hamza
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Message 6 of 23

jan.gladines
Contributor
Contributor

I have tried a loft but didn't get the result I wanted, care to share the .f3d file? 

 

Also, would using a loft be a valuable option when I'm planning on sending this to a CNC?

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Message 7 of 23

davebYYPCU
Consultant
Consultant

Not the result you want - can you give details?

 

To CNC - should be fine,

 

An interesting statement.

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Message 8 of 23

SaeedHamza
Advisor
Advisor

@jan.gladines

Is the picture above in my previous post not the desired result?

 

Regards

 

Saeed

Saeed Hamza
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Message 9 of 23

jan.gladines
Contributor
Contributor

Looking at the screenshot you still have the same chamfer on all four edges no? I want to have a different angled ones on the top/bottom and left/right.

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Message 10 of 23

TrippyLighting
Consultant
Consultant

Correct!

In that case only a loft will do. If that does not work for you, then please create a screencast so we can see where that fails to produce the results you are looking for.


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Message 11 of 23

SaeedHamza
Advisor
Advisor

Oh I see, yes this is clearly a loft with the fillets made in the sketch

 

loft sketch.pngloft instead of chamfer.png

Saeed Hamza
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Message 12 of 23

jan.gladines
Contributor
Contributor

Using a loft made for a lot of imperfections. I use a 6mm fillet on the bottom part and a 3mm on the top part.Screen Shot 2017-08-21 at 13.21.02.pngScreen Shot 2017-08-21 at 13.21.08.png

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Message 13 of 23

TrippyLighting
Consultant
Consultant

Please share your model. A normal solid loft usually does not look like that unless the twist control handles are in the wrong spot, which is some of what these screenshots suggest.


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Message 14 of 23

davebYYPCU
Consultant
Consultant

The first pic has no fillet in the corner of the top profile.

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Message 15 of 23

jan.gladines
Contributor
Contributor

Here you go 🙂

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Message 16 of 23

SaeedHamza
Advisor
Advisor

This might be a bug, check these pictures below, they are for the same part, but one 1 zoomed in and the other is zoomed out

zoom 1.pngzoom 2.png

 

As for the transitions at the corners, they are just fine

Saeed Hamza
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Message 17 of 23

TrippyLighting
Consultant
Consultant

@SaeedHamza @jan.gladines

 

There's no bug 😉

 

Just set your design detail control to fixed/high and these visual artifacts are gone.

 

Screen Shot 2017-08-21 at 1.49.52 PM.png


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Message 18 of 23

SaeedHamza
Advisor
Advisor

Oh I see! that's something new for me, does this command remove all kinds of visual issues like this one?

And what good is it for?

Saeed Hamza
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Message 19 of 23

SaeedHamza
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@TrippyLighting

 

That means there is nothing wrong with the model, did you check it?

Saeed Hamza
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Message 20 of 23

TrippyLighting
Consultant
Consultant

@SaeedHamza it removes tessellation artifacts. Fusion 360's LOD (level of detail) algorithm dynamically determines how fine to triangulter objects for viewing in the viewport.

Thats' the adaptive setting in that dialogue. However, for rendering one often needs to override this in oder to remove visible faceting. Particularly for objects with high aspect ratio e.g long and thin, or for shots with short focal length.

 

The design is fine and the twist control hande is where it should be.


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